• Summary A mysterious, unsignposted designation, probably for a portion of today's Route 243 west of Route 114.

This route was probably not signed, and I haven't seen it on any map. There's a single notation on the ConnDOT spreadsheet for this route: in 1951, when Route 114 was realigned in Woodbridge, Route 114A became SR 552, which later became part of Route 243.

CT 114A Sources